ZIP code · Unalaska · Alaska · United States
ZIP code 99685 — Unalaska
ZIP code 99685 serves Unalaska, Alaska.
- Postal code
- 99685Single source Value from one source, not cross-checked.
- City
- Unalaska
- County
- Aleutians West (CA) FIPS 02016
- State
- Alaska
- Country
- United States
- Coordinates
- 53.8871, -166.5199 — precision estimated (postal-area centroid)
View on OpenStreetMap - Population
- 3,690 (ZCTA, ACS 5-year)
- Population density
- 66 / sq mi
- Land area
- 56.3 sq mi (145.9 km²) (ZCTA, ACS 5-year)
- Median household income
- $119,063
- Per-capita income
- $52,695
- Median age
- 38.1
- Households
- 692
- Housing units
- 838
- Median home value
- $448,700
- Median gross rent
- $2,051 / month
- Congressional district
- AK At-large (119th Congress)
- USDA hardiness zone
- 8a (10 to 15 °F)Planting / growing zone from the 2023 USDA Plant Hardiness Zone Map: average annual extreme minimum temperature, 1991–2020.
- Time zone
- America/Anchorage (UTC−9 / UTC−8 DST)
- Area code
- 907Telephone area codes serving this ZIP (NANPA central-office assignments). A ZIP and an area code are different boundaries; at a border both codes may apply.
Tools: compare 99685 with another ZIP · ZIPs within 25 miles · distance from 99685
Nearby localities
Map of ZIP code 99685
Climate — monthly normals
Warmest month Aug (avg high 59°F), coldest Jan (avg low 29°F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 37 | 39 | 39 | 42 | 47 | 52 | 57 | 59 | 55 | 48 | 43 | 39 |
| Avg low °F | 29 | 29 | 29 | 33 | 37 | 42 | 47 | 48 | 44 | 38 | 33 | 31 |
| Precip in | 6.8 | 5.2 | 4.7 | 3.5 | 4.2 | 2.5 | 2.3 | 2.9 | 5.7 | 7.9 | 6.7 | 7.9 |
NOAA 1991–2020 climate normals from the nearest station: DUTCH HARBOR (1.1 mi) · NOAA NCEI
Places in ZIP 99685
- 1 schools
- 1 hospitals & clinics
- 1 supermarkets
- 2 restaurants & cafés
- 1 bars & pubs
- 6 parks
- 6 playgrounds
- 1 libraries
- 1 post offices
- 6 places of worship
- 4 police & fire stations
Places mapped inside this ZIP’s ZCTA area in OpenStreetMap. OSM is community-maintained: counts reflect what has been mapped, and completeness varies by area — treat them as at-least figures. © OpenStreetMap contributors (ODbL) · Methodology
About this page
US ZIP codes have five digits. They are postal routing areas, not administrative boundaries: a ZIP can span more than one city or county, and the city shown is the primary USPS name for that code.
GeoNames · U.S. Census Bureau (ACS) · U.S. Census Bureau · NOAA NCEI · usda-phzm. Data generated on 2026-08-21. Methodology · Report an error on this page